DE170304C - - Google Patents
Info
- Publication number
- DE170304C DE170304C DENDAT170304D DE170304DA DE170304C DE 170304 C DE170304 C DE 170304C DE NDAT170304 D DENDAT170304 D DE NDAT170304D DE 170304D A DE170304D A DE 170304DA DE 170304 C DE170304 C DE 170304C
- Authority
- DE
- Germany
- Prior art keywords
- mass
- ferrosilicon
- resistance
- silicon
- powdered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000001427 coherent Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
M 170304 KLASSE 21 Λ. M 170304 CLASS 21 Λ.
Gegenstand der vorliegenden Erfindung ist die Zusammensetzung einer Widerstandsmasse für elektrische Öfen derjenigen Art, bei welcher ein aus schlecht leitendem Stoff bestehender Tiegel o. dgl. durch eine mit ihm in Berührung stehende Heizmasse erhitzt wird, durch welche mittels besonderer Elektroden ein elektrischer Strom hindurchgeleitet wird.The present invention relates to the composition of a resistor mass for electric ovens of the type in which a material consisting of poorly conductive material Crucible or the like is heated by a heating mass in contact with it, through which special electrodes an electric current is passed through it.
Gemäß der vorliegenden Erfindung wirdAccording to the present invention
ίο als Widerstandsmasse gepulvertes, gekörntes oder zusammenhängendes Ferrosilicium oder eine Mischung von Ferrosilicium mit Graphit benutzt, wobei sich, wie Versuche ergeben haben, der Widerstand und damit die Temperatur in beliebigen Grenzen regeln lassen.ίο powdered, grained as resistance mass or contiguous ferro-silicon or a mixture of ferro-silicon with graphite used, whereby, as tests have shown, the resistance and thus the temperature can be regulated within any limits.
Das im elektrischen Ofen erzeugte Ferrosilicium kann mit einem Gehalt von 5 bezw. IO Prozent bis zu 90 Prozent Silicium hergestellt werden, so daß man leicht für einen und denselben Querschnitt und für eine und dieselbe Länge verschiedene Widerstände von vorauszubestimmender Größe erzielen kann. j Da das Ferrosilicium gegossen wird, so läßt es sich erreichen, daß es durch seine ganze Masse hindurch einen vollständig gleichmäßigen Widerstand besitzt. Für kleine öfen kann die Widerstandsmasse daher auch aus einem einzigen Gußstück bestehen.The ferrosilicon produced in the electric furnace can bezw with a content of 5. IO percent up to 90 percent silicon can be made so that one can easily get one and the same cross-section and for one and the same length different resistances of can achieve predetermined size. j As the ferrosilicon is poured, so lets it can achieve that it is completely uniform through its whole mass Possesses resistance. The resistance mass can therefore also be used for small stoves consist of a single casting.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE170304C true DE170304C (en) |
Family
ID=435364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT170304D Active DE170304C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE170304C (en) |
-
0
- DE DENDAT170304D patent/DE170304C/de active Active
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